NHTSA Complaint #10825257 — 2008 FORD TAURUS X

ONGOING TRANSMISSION UPSHIFT PROBLEMS. UPON LEAVING THE DRIVEWAY FIRST THING, OR SOON AFTER COMING TO A STOP AND TRYING TO ACCELERATE AGAIN THE TRANSMISSION AT TIMES REFUSES TO UP SHIFT THEN SLAMS INTO GEAR AT HIGH RPM. DEALER/OTHER MECHANICS HAVE NOT BEEN ABLE TO DUPLICATE ALTHOUGH THERE ARE 2 TSB ON THESE 6F50 TRANSMISSIONS. WORSE IN COLDER MONTHS AND SOMEWHAT RANDOM. BESIDES THE CUMULATIVE DAMAGE THIS IS DOING WE ARE WORRIED THAT THE TRANSMISSION MAY FAIL ENTIRELY AT THE EXACT WRONG TIME (WAITING TO TURN LEFT IN AN INTERSECTION, WAITING TO ENTER HIGHWAY ETC) RESULTING IN SERIOUS INJURY. RESEARCHING ONLINE, THIS IS A COMMON PROBLEM FOR THIS TRANSMISSION TYPE ( SEE HTTP://WWW.FORDTAURUS.NET/FORUMS/VIEWTOPIC.PHP?F=30&T=15703&START=80 ) AND ESPECIALLY THE 2008 TAURUS X MODEL YEAR. THE 2008 FORD TAURUS X WAS A DESIGN REFRESH OF THE FORD FREESTYLE, WHICH WAS LATER DROPPED BY FORD IN 2009. SINCE THERE ARE FEWER MODELS ON THE ROAD THERE ARE FEWER DATAPOINTS--BUT IT IS A COMMON PROBLEMS AMONGST THE OWNERS (AGAIN PLEASE SEE THE LINK). A COMMON THREAD ONLINE IS THAT ANY REPAIRS AT THE DEALER ARE NOT EFFECTIVE (PCM REFLASH TSB 08-26-13; TSS, OSS SENSOR REPLACEMENT TSB 07-21-11 ) AND THE ONLY FIX IS A $6000 TRANSMISSION REPLACEMENT UPON TOTAL MECHANICAL FAILURE. CLEARLY, THERE IS A ENGINEERING DESIGN FLAW THAT IS A SAFETY ISSUE IN A CRITICAL COMPONENT--THE POWER TRAIN. PLEASE INVESTIGATE. THANK YOU. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR